Author Question: How do scientists measure the age of rocks at mid-ocean ridges? A) radioactive dating methods ... (Read 192 times)

futuristic

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How do scientists measure the age of rocks at mid-ocean ridges?
 
  A) radioactive dating methods
  B) comparison of rock samples on mountain ranges
  C) fossil stratification and the principle of horizontality
  D) magnetic polarity measurements

Question 2

How fast is North America moving away from Africa?
 
  A) 3 cm/year
  B) 3 m/year
  C) 3 mm/year
  D) 3 km/year



Fayaz00962

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Answer to Question 1

Answer: D

Answer to Question 2

Answer: A



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